BIPEE 7pcs Egg Shape PTFE Magnetic Stirrer Mixer Stir Bars White Color - The stir bar is placed inside a container of liquid or solution that is seated on a magnetic stirrer, which is a laboratory device that creates a rotating magnetic field using a rotating magnet or multiple stationary electromagnets. Teflon (ptfe) casing is chemically inert, can be used with corrosive chemicals, and helps reduce friction and wear while spinning. Built-in pivot ring helps reduce vibration and wear during stirring. Egg shape creates more turbulence and a stronger vortex than a round, cylindrical shape or a polygonal shape. It is used to stir a liquid or solution in biological, chemical, medical and research laboratory applications.

PTFE Magnetic Stirrer Mixer Cross Type Stir Bar Spinbar Stirring - Provides a larger surface area and added turbulence when the smooth surface of the cylindrical rods compared. Recessed bezel helps to reduce vibration while stirringparticularly useful for environmental testing and life science applications in which small sample volumes need to be prepared and evaluated. Cross type / plus shape creates a vortex to the bottom of the container and provides more stability and less vibration than single-stir bar shapes. Size373712mm shapecross / plus sold as each. Internal magnet made from alnico v, an alloy of aluminum, nickel, iron, and cobaltoutside material is approved for use in food, drug, and cosmetic applications, it’s safe.

BIPEE 13pcs PTFE Magnetic Stirrer Mixer Stir Bars White Color - Teflon (ptfe) casing is chemically inert, can be used with corrosive chemicals, and helps reduce friction and wear while spinning. It is used to stir a liquid or solution in biological, chemical, medical and research laboratory applications. Built-in pivot ring helps reduce vibration and wear during stirring. The stir bar is placed inside a container of liquid or solution that is seated on a magnetic stirrer, which is a laboratory device that creates a rotating magnetic field using a rotating magnet or multiple stationary electromagnets. Octagonal shape creates more turbulence and a stronger vortex than a round, cylindrical shape or a polygonal shape.